2018 Navigator 6mpg when towing 8k lb camper Ecoboost

Accept it is my recommendation. If you are like me, you will want to jump out of your skin doing a long haul like that at 55-60 mph. Personally, I think some of the most dangerous people on the roads are big trucks and people towing going too slow! When all the traffic is averaging 70mph and an RV is going 55mph it gets hairy! Maybe slow down to 70 but otherwise accept it as you and I both know you are not going to go slower just to save 1 mpg.